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Interactive
CK-12 Foundation

Hot Air Balloon

For Students 6th - 12th Standards
How can people control a hot air balloon? The simple simulation allows scholars to adjust the payload mass, burner, and vent position on a hot air balloon and observe the changes in velocity and altitude over time. Challenge questions...
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Interactive
Curated OER

English Exercises: Cloze Exercise

For Students 3rd - 8th
For this online interactive English worksheet, students respond to 29 fill in the blank questions where they complete a cloze activity. Students may submit their answers to be scored.

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